Feeding issues with factory .45 WWC 185 SWC vs. Fedreal 185 SWC

First topic message reminder :

I recently had to replace the barrel in my primary wad gun.  I had a new Barstow barrel, bushing and link fitted.  Prior to the replacement I had no issues with the gun, it would eat any thing I put in it. The problem now is that the new barrel will feed WWC  flawlessly while Federal will not go into battery.  Since I have several thousand rounds of Federal on hand I am looking for a solution to the feeding problem.

 

So far it has been suggested that I

            a.  use emery cloth to polish the chamber

            b.  run the Federal ammo through a sizing die

            c.  run the Federal through a taper crimp

            d.  from a  buddy, "stop using the Federal and give it to me"

 

Your thoughts/opines would be appreciated.

           

Unless the other barrel was Bar-Sto, you "probably" simply have a tight match chamber.
Again, try to give the Fed. rounds a little taper crimp.
Of course, if you don't reload, you can't do that.
Call Bar-Sto and ask them.
Why ask a bunch of folks who are more or less waving their hands in the air, when you ask the folks who made the barrel.